【摘要】 利用利木赞与本地牛杂交一代7～8月龄公犊12头，10～11月龄公牛12头，供给日增重0．9千克，1．2千克和1．5千克营养水平的日粮，经120天肥育，结果表明：7～8月龄和10～11月龄高营养水平组平均日增重分别为1．274±0．06千克和1．340±0．15千克；7～8月龄组对不同营养水平敏感，各组间差异极显著（P＜0．01）；产肉性能以高营养水平组最好，屠宰率62．4％，净肉率52．98％，眼肌面积91平方厘米。更多还原

【Abstract】 The local yellow cattle were crossed by the limousin. Twelve heads of the cross F, at 7 - 8 months of age and the same heads at 10- 11 months of age were respectively fed with a diet which can get a 0. 9kg, 1. 2kg and 1. 5kg daily gain for the cattle for a fini-shing period of 120 days. After the experiment of 120 days feeding, the results showed that the average daily gain of hihg nutrtion level grous from 7- 8 months of age and 10- 11 months of age were 1. 274 ±0. 06kg and 1. 340±0. 15kg, respectively. The group of 7 - 8 months is sensitive to different nutrition level (p<0.01 ). The meat yield of high nutrition level group was the bes. The dressing percentage was 62.4 % and the meat percentage was 52. 98%. The ribeye area averaged 91cm2.更多还原